menu.c

   1 #pragma once
   2 #include "skaterift.h"
   3 #include "menu.h"
   4 #include "model.h"
   5 #include "entity.h"
   6 #include "input.h"
   7 #include "world_map.h"
   8 #include "ent_miniworld.h"
   9 #include "audio.h"
  10 #include "workshop.h"
  11 #include "gui.h"
  12 #include "shaders/model_menu.h"
  13
  14 struct global_menu menu;
  15
  16 /*
  17  * Attaches memory locations to the various items in the menu
  18  */
  19 void menu_link(void)
  20 {
  21    /* link data locations */
  22    for( u32 i=0; i<mdl_arrcount(&menu.items); i++ ){
  23       ent_menuitem *item = mdl_arritm( &menu.items, i );
  24
  25       if( item->type == k_ent_menuitem_type_toggle ||
  26           item->type == k_ent_menuitem_type_slider ){
  27
  28          const char *name;
  29
  30          if( item->type == k_ent_menuitem_type_slider )
  31             name = mdl_pstr( &menu.model, item->slider.pstr_data );
  32          else
  33             name = mdl_pstr( &menu.model, item->checkmark.pstr_data );
  34          vg_var *var = vg_console_match_var( name );
  35
  36          if( var ){
  37             if( ( item->type == k_ent_menuitem_type_slider &&
  38                   var->data_type != k_var_dtype_f32
  39                 ) ||
  40                 ( item->type == k_ent_menuitem_type_toggle &&!
  41                   ( var->data_type == k_var_dtype_i32 ||
  42                     var->data_type == k_var_dtype_u32
  43                   )
  44                )
  45             ){
  46                vg_error( "Cannot hook to data %s(%p), because it is type %d.\n",
  47                            name, var, var->data_type );
  48                item->pvoid = NULL;
  49             }
  50             else{
  51                item->pvoid = var->data;
  52             }
  53          }
  54          else{
  55             vg_error( "No data named %s\n", name );
  56             item->pvoid = NULL;
  57          }
  58       }
  59       else{
  60          item->pvoid = NULL;
  61       }
  62    }
  63
  64    /* link controllers */
  65    menu.ctr_deck = NULL;
  66    menu.ctr_kbm = NULL;
  67    menu.ctr_ps = NULL;
  68    menu.ctr_steam = NULL;
  69    menu.ctr_xbox = NULL;
  70
  71    for( u32 i=0; i<mdl_arrcount(&menu.items); i++ ){
  72       ent_menuitem *item = mdl_arritm( &menu.items, i );
  73
  74       if( MDL_CONST_PSTREQ( &menu.model, item->visual.pstr_name, "deck" ) )
  75          menu.ctr_deck = item;
  76       if( MDL_CONST_PSTREQ( &menu.model, item->visual.pstr_name, "kbm" ) )
  77          menu.ctr_kbm = item;
  78       if( MDL_CONST_PSTREQ( &menu.model, item->visual.pstr_name, "ps" ) )
  79          menu.ctr_ps = item;
  80       if( MDL_CONST_PSTREQ( &menu.model, item->visual.pstr_name, "steam" ) )
  81          menu.ctr_steam = item;
  82       if( MDL_CONST_PSTREQ( &menu.model, item->visual.pstr_name, "xbox" ) )
  83          menu.ctr_xbox = item;
  84    }
  85 }
  86
  87 void menu_close(void)
  88 {
  89    skaterift.activity = k_skaterift_default;
  90    menu.page_depth = 0;
  91    menu.page = 0xffffffff;
  92    srinput.state = k_input_state_resume;
  93 }
  94
  95 void menu_init(void)
  96 {
  97    void *alloc = vg_mem.rtmemory;
  98
  99    mdl_open( &menu.model, "models/rs_menu.mdl", alloc );
 100    mdl_load_metadata_block( &menu.model, alloc );
 101
 102    vg_linear_clear( vg_mem.scratch );
 103
 104    MDL_LOAD_ARRAY( &menu.model, &menu.items,   ent_menuitem, alloc );
 105    MDL_LOAD_ARRAY( &menu.model, &menu.markers, ent_marker, alloc );
 106    MDL_LOAD_ARRAY( &menu.model, &menu.cameras, ent_camera, alloc );
 107
 108    u32 count = mdl_arrcount( &menu.model.textures );
 109    menu.textures = vg_linear_alloc(alloc,vg_align8(sizeof(GLuint)*(count+1)));
 110    menu.textures[0] = vg.tex_missing;
 111
 112    mdl_async_load_glmesh( &menu.model, &menu.mesh, NULL );
 113
 114    for( u32 i=0; i<count; i ++ ){
 115       vg_linear_clear( vg_mem.scratch );
 116       menu.textures[i+1] = vg.tex_missing;
 117
 118       mdl_texture *tex = mdl_arritm( &menu.model.textures, i );
 119       void *data = vg_linear_alloc( vg_mem.scratch, tex->file.pack_size );
 120       mdl_fread_pack_file( &menu.model, &tex->file, data );
 121       vg_tex2d_load_qoi_async( data, tex->file.pack_size,
 122                                VG_TEX2D_LINEAR|VG_TEX2D_CLAMP,
 123                                &menu.textures[i+1] );
 124    }
 125
 126    mdl_close( &menu.model );
 127 }
 128
 129 /*
 130  * Drop back a page until we're at the bottom which then we jus quit
 131  */
 132 static void menu_back_page(void){
 133    menu.page_depth --;
 134    if( menu.page_depth == 0 ){
 135       menu_close();
 136    }
 137    else{
 138       menu.page = menu.page_stack[ menu.page_depth ].page;
 139       menu.cam = menu.page_stack[ menu.page_depth ].cam;
 140
 141       if( menu.input_mode == k_menu_input_mode_keys )
 142          menu.loc = menu.page_stack[ menu.page_depth ].loc;
 143       else menu.loc = NULL;
 144    }
 145 }
 146
 147 /*
 148  * Open page to the string identifier
 149  */
 150 void menu_open_page( const char *name,
 151                      enum ent_menuitem_stack_behaviour stackmode )
 152 {
 153    srinput.state = k_input_state_resume;
 154    if( stackmode == k_ent_menuitem_stack_append ){
 155       if( menu.page_depth >= MENU_STACK_SIZE )
 156          vg_fatal_error( "Stack overflow\n" );
 157    }
 158    else{
 159       if( menu.page_depth == 0 )
 160          vg_fatal_error( "Stack underflow\n" );
 161    }
 162
 163    u32 hash = vg_strdjb2( name );
 164    for( u32 i=0; i<mdl_arrcount(&menu.items); i++ ){
 165       ent_menuitem *item = mdl_arritm( &menu.items, i );
 166
 167       if( item->type == k_ent_menuitem_type_page ){
 168          if( mdl_pstreq( &menu.model, item->page.pstr_name, name, hash ) ){
 169             u32 new_page = __builtin_ctz( item->groups );
 170
 171             if( new_page == menu.page ){
 172                if( stackmode != k_ent_menuitem_stack_replace )
 173                   menu_back_page();
 174             }
 175             else{
 176                menu.page_stack[ menu.page_depth ].page = menu.page;
 177                menu.page_stack[ menu.page_depth ].cam = menu.cam;
 178                menu.page_stack[ menu.page_depth ].loc = menu.loc;
 179
 180                if( stackmode == k_ent_menuitem_stack_append )
 181                   menu.page_depth ++;
 182
 183                menu.page = __builtin_ctz( item->groups );
 184
 185                if( menu.input_mode == k_menu_input_mode_keys ){
 186                   if( item->page.id_entrypoint ){
 187                      u32 id = mdl_entity_id_id( item->page.id_entrypoint );
 188                      menu.loc = mdl_arritm( &menu.items, id );
 189                   }
 190                }
 191
 192                if( item->page.id_viewpoint ){
 193                   u32 id = mdl_entity_id_id( item->page.id_viewpoint );
 194                   menu.cam = mdl_arritm( &menu.cameras, id );
 195                }
 196             }
 197             return;
 198          }
 199       }
 200    }
 201 }
 202
 203 /*
 204  * activate a pressable type
 205  */
 206 static void menu_trigger_item( ent_menuitem *item ){
 207    if     ( item->type == k_ent_menuitem_type_event_button ){
 208       u32 q = item->button.pstr;
 209
 210       if( MDL_CONST_PSTREQ( &menu.model, q, "quit" ) ){
 211          vg.window_should_close = 1;
 212       }
 213       else if( MDL_CONST_PSTREQ( &menu.model, q, "map" ) ){
 214          menu_close();
 215          world_map_enter();
 216       }
 217       else if( MDL_CONST_PSTREQ( &menu.model, q, "hub" ) ){
 218          if( world_static.active_instance == k_world_purpose_client ){
 219             menu_close();
 220             ent_miniworld_goback();
 221          }
 222       }
 223       else if( MDL_CONST_PSTREQ( &menu.model, q, "credits" ) ){
 224          menu.credits_open = 1;
 225       }
 226       else if( MDL_CONST_PSTREQ( &menu.model, q, "workshop" ) ){
 227          workshop_submit_command(0,NULL);
 228       }
 229       else if( MDL_CONST_PSTREQ( &menu.model, q, "engine" ) ){
 230          vg_settings_open();
 231       }
 232       else if( MDL_CONST_PSTREQ( &menu.model, q, "prem_store" ) ){
 233          if( steam_ready )
 234             SteamAPI_ISteamFriends_ActivateGameOverlayToStore(
 235                   SteamAPI_SteamFriends(), 2103940, k_EOverlayToStoreFlag_None);
 236       }
 237       else if( MDL_CONST_PSTREQ( &menu.model, q, "prem_nevermind" ) ){
 238          menu_close();
 239       }
 240    }
 241    else if( item->type == k_ent_menuitem_type_page_button ){
 242       menu_open_page( mdl_pstr( &menu.model, item->button.pstr ),
 243                       item->button.stack_behaviour );
 244    }
 245    else if( item->type == k_ent_menuitem_type_toggle ){
 246       if( item->pi32 ){
 247          *item->pi32 = *item->pi32 ^ 0x1;
 248       }
 249    }
 250 }
 251
 252 static f32 menu_slider_snap( f32 value, f32 old, f32 notch ){
 253    f32 const k_epsilon = 0.0125f;
 254
 255    if( fabsf(notch-value) < k_epsilon ){
 256       if( fabsf(notch-old) > k_epsilon ){
 257          audio_lock();
 258          audio_oneshot( &audio_ui[0], 1.0f, 0.0f );
 259          audio_unlock();
 260       }
 261
 262       return notch;
 263    }
 264    else
 265       return value;
 266 }
 267
 268 static void menu_setitem_type( ent_menuitem *item,
 269                                enum ent_menuitem_type type ){
 270    if( !item ) return;
 271    item->type = type;
 272 }
 273
 274 /*
 275  * Run from vg_gui every frame
 276  */
 277 void menu_update(void)
 278 {
 279    if( workshop_form.page != k_workshop_form_hidden ){
 280       return;
 281    }
 282
 283    int escape = button_down( k_srbind_mback );
 284    if( menu.credits_open || vg.settings_open ){
 285       if( escape ){
 286          menu.credits_open = 0;
 287
 288          if( vg.settings_open )
 289             vg_settings_close();
 290       }
 291       return;
 292    }
 293
 294    if( button_down( k_srbind_mopen ) ){
 295       if( skaterift.activity == k_skaterift_default ){
 296          skaterift.activity = k_skaterift_menu;
 297          menu.page = 0xffffffff;
 298          menu_open_page( "Main Menu", k_ent_menuitem_stack_append );
 299          return;
 300       }
 301    }
 302
 303    if( skaterift.activity != k_skaterift_menu ) return;
 304    enum menu_input_mode prev_mode = menu.input_mode;
 305
 306    /* get buttons inputs
 307     * -------------------------------------------------------------------*/
 308    int ml = button_down( k_srbind_mleft ),
 309        mr = button_down( k_srbind_mright ),
 310        mu = button_down( k_srbind_mup ),
 311        md = button_down( k_srbind_mdown ),
 312        mh = ml-mr,
 313        mv = mu-md,
 314        enter = button_down( k_srbind_maccept );
 315
 316    if( mh||mv||enter ){
 317       menu.input_mode = k_menu_input_mode_keys;
 318    }
 319
 320    /* get mouse inputs
 321     * --------------------------------------------------------------------*/
 322    menu.mouse_dist += v2_length( vg.mouse_delta ); /* TODO: Move to UI */
 323    menu.mouse_track += vg.time_frame_delta;
 324    if( menu.mouse_track > 0.1f ){
 325       menu.mouse_track = fmodf( menu.mouse_track, 0.1f );
 326       if( menu.mouse_dist > 10.0f ){
 327          menu.input_mode = k_menu_input_mode_mouse;
 328          menu.mouse_dist = 0.0f;
 329       }
 330    }
 331
 332    if( ui_clicking(UI_MOUSE_LEFT) || ui_clicking(UI_MOUSE_RIGHT) ){
 333       menu.input_mode = k_menu_input_mode_mouse;
 334    }
 335
 336    if( menu.input_mode == k_menu_input_mode_mouse ){
 337       /*
 338        * handle mouse input
 339        * ------------------------------------------------------------*/
 340       vg_ui.wants_mouse = 1;
 341
 342       /*
 343        * this raycasting is super cumbersome because all the functions were
 344        * designed for other purposes. we dont care though.
 345        */
 346       m4x4f inverse;
 347       m4x4_inv( menu.view.mtx.p, inverse );
 348       v4f coords;
 349       coords[0] = vg_ui.mouse[0];
 350       coords[1] = vg.window_y - vg_ui.mouse[1];
 351       v2_div( coords, (v2f){ vg.window_x, vg.window_y }, coords );
 352       v2_muls( coords, 2.0f, coords );
 353       v2_add( coords, (v2f){-1.0f,-1.0f}, coords );
 354       coords[2] = 1.0f;
 355       coords[3] = 1.0f;
 356       m4x4_mulv( inverse, coords, coords );
 357       v3f ray;
 358       m3x3_mulv( menu.view.transform, coords, ray );
 359       v3_normalize( ray );
 360
 361       if( menu.loc && (menu.loc->type == k_ent_menuitem_type_slider) &&
 362           ui_clicking(UI_MOUSE_LEFT) && menu.loc->pf32 ){
 363
 364          u32 il = mdl_entity_id_id( menu.loc->slider.id_min ),
 365              ir = mdl_entity_id_id( menu.loc->slider.id_max );
 366          ent_marker *ml = mdl_arritm( &menu.markers, il ),
 367                     *mr = mdl_arritm( &menu.markers, ir );
 368
 369          v3f q2;
 370          v3_muladds( menu.view.pos, ray, 100.0f, q2 );
 371
 372          f32 s,t;
 373          v3f c1, c2;
 374          v3f p1, q1, v0;
 375          v3_sub( mr->transform.co, ml->transform.co, v0 );
 376          v3_muladds( ml->transform.co, v0, -1.0f, p1 );
 377          v3_muladds( mr->transform.co, v0,  1.0f, q1 );
 378          closest_segment_segment( p1, q1, menu.view.pos, q2, &s,&t, c1,c2 );
 379
 380          s-=(1.0f/3.0f);
 381          s/=(1.0f/3.0f);
 382
 383          if( ui_click_down(UI_MOUSE_LEFT) ){
 384             menu.slider_offset = *menu.loc->pf32 - s;
 385          }
 386
 387          f32 newvalue = vg_clampf( s+menu.slider_offset, 0.0f, 1.0f );
 388
 389          newvalue = menu_slider_snap( newvalue, *menu.loc->pf32, 0.00f );
 390          newvalue = menu_slider_snap( newvalue, *menu.loc->pf32, 1.00f );
 391          newvalue = menu_slider_snap( newvalue, *menu.loc->pf32, 0.25f );
 392          newvalue = menu_slider_snap( newvalue, *menu.loc->pf32, 0.50f );
 393          newvalue = menu_slider_snap( newvalue, *menu.loc->pf32, 0.75f );
 394
 395          *menu.loc->pf32 = newvalue;
 396          return;
 397       }
 398
 399       ent_menuitem *hit_item = NULL;
 400
 401       for( u32 i=0; i<mdl_arrcount(&menu.items); i++ ){
 402          ent_menuitem *item = mdl_arritm( &menu.items, i );
 403
 404          if( item->type == k_ent_menuitem_type_page ) continue;
 405          if( (item->type == k_ent_menuitem_type_visual) ||
 406              (item->type == k_ent_menuitem_type_visual_nocol) ) continue;
 407          if( item->type == k_ent_menuitem_type_binding ) continue;
 408          if( !(item->groups & (0x1<<menu.page)) ) continue;
 409
 410          ent_menuitem *ray_item = item;
 411
 412          if( item->type == k_ent_menuitem_type_slider ){
 413             u32 subtarget = mdl_entity_id_id( item->slider.id_handle );
 414             ray_item = mdl_arritm( &menu.items, subtarget );
 415          }
 416
 417          v3f local_ray,
 418              local_co;
 419
 420          m4x3f inverse_mtx;
 421          mdl_transform_m4x3( &ray_item->transform, inverse_mtx );
 422          m4x3_invert_full( inverse_mtx, inverse_mtx );
 423
 424          m4x3_mulv( inverse_mtx, menu.view.transform[3], local_co );
 425          m3x3_mulv( inverse_mtx, ray, local_ray );
 426          v3_normalize( local_ray );
 427
 428          local_ray[0] = 1.0f/local_ray[0];
 429          local_ray[1] = 1.0f/local_ray[1];
 430          local_ray[2] = 1.0f/local_ray[2];
 431
 432          for( u32 j=0; j<ray_item->submesh_count; j++ ){
 433             mdl_submesh *sm = mdl_arritm( &menu.model.submeshs,
 434                                            ray_item->submesh_start + j );
 435             if( ray_aabb1( sm->bbx, local_co, local_ray, 1000.0f ) ){
 436                hit_item = item;
 437                break;
 438             }
 439          }
 440       }
 441
 442       if( hit_item != menu.loc ){
 443          menu.loc = hit_item;
 444       }
 445
 446       if( escape ){
 447          menu_back_page();
 448       }
 449       else if( menu.loc ){
 450          if( ui_click_down( UI_MOUSE_LEFT ) ){
 451             menu_trigger_item( menu.loc );
 452          }
 453       }
 454    }
 455    else if( menu.input_mode == k_menu_input_mode_keys ){
 456       /*
 457        * handle button input
 458        * ------------------------------------------------------------*/
 459       if( (prev_mode != k_menu_input_mode_keys) && !menu.loc ){
 460          for( u32 i=0; i<mdl_arrcount(&menu.items); i++ ){
 461             ent_menuitem *item = mdl_arritm( &menu.items, i );
 462
 463             if( (item->type != k_ent_menuitem_type_page) &&
 464                 (item->type != k_ent_menuitem_type_visual) &&
 465                 (item->type != k_ent_menuitem_type_visual_nocol) &&
 466                 (item->groups & (0x1<<menu.page)) ){
 467                menu.loc = item;
 468             }
 469          }
 470       }
 471
 472       if( !menu.loc ) vg_fatal_error( "No location\n" );
 473
 474       if( menu.loc->type == k_ent_menuitem_type_slider && menu.loc->pf32 ){
 475          f32 move = 0.0f;
 476
 477          if( vg_input.display_input_method == k_input_method_controller ){
 478             move += button_press( k_srbind_mright );
 479             move -= button_press( k_srbind_mleft );
 480          }
 481          else{
 482             move += axis_state( k_sraxis_mbrowse_h );
 483          }
 484
 485          move *= vg.time_frame_delta;
 486          *menu.loc->pf32 = vg_clampf( *menu.loc->pf32 + move, 0.0f, 1.0f );
 487
 488          mh = 0;
 489       }
 490
 491       if( escape ){
 492          menu_back_page();
 493       }
 494       else if( enter ){
 495          menu_trigger_item( menu.loc );
 496       }
 497       else if( mh||mv ){
 498          v3f opt;
 499          v3_zero( opt );
 500          f32 best = 0.707f;
 501          ent_menuitem *nextpos = NULL;
 502
 503          opt[0] += mh;
 504          opt[2] += mv;
 505          mdl_transform_vector( &menu.cam->transform, opt, opt );
 506
 507          for( u32 i=0; i<4; i++ ){
 508             u32 id = menu.loc->id_links[i];
 509             if( !id ) continue;
 510             u32 index = mdl_entity_id_id( id );
 511
 512             ent_menuitem *other = mdl_arritm( &menu.items, index );
 513             v3f delta;
 514             v3_sub( menu.loc->transform.co, other->transform.co, delta );
 515             v3_normalize( delta );
 516
 517             f32 score = v3_dot( delta, opt );
 518             if( score > best ){
 519                best = score;
 520                nextpos = other;
 521             }
 522          }
 523
 524          if( nextpos ){
 525             menu.loc = nextpos;
 526          }
 527       }
 528    }
 529
 530    menu_setitem_type( menu.ctr_deck, k_ent_menuitem_type_disabled );
 531    menu_setitem_type( menu.ctr_ps, k_ent_menuitem_type_disabled );
 532    menu_setitem_type( menu.ctr_kbm, k_ent_menuitem_type_disabled );
 533    menu_setitem_type( menu.ctr_xbox, k_ent_menuitem_type_disabled );
 534    menu_setitem_type( menu.ctr_steam, k_ent_menuitem_type_disabled );
 535
 536    if( vg_input.display_input_method == k_input_method_kbm )
 537       menu_setitem_type( menu.ctr_kbm, k_ent_menuitem_type_visual_nocol );
 538    else{
 539       if( vg_input.display_input_type == SDL_CONTROLLER_TYPE_PS3 ||
 540           vg_input.display_input_type == SDL_CONTROLLER_TYPE_PS4 ||
 541           vg_input.display_input_type == SDL_CONTROLLER_TYPE_PS5 ){
 542          menu_setitem_type( menu.ctr_ps, k_ent_menuitem_type_visual_nocol );
 543       }
 544       else {
 545          menu_setitem_type( menu.ctr_xbox, k_ent_menuitem_type_visual_nocol );
 546       }
 547       /* FIXME: Steam/Deck controller detection? */
 548    }
 549 }
 550
 551 static void menu_binding_string( char buf[128], u32 pstr );
 552
 553 /*
 554  * Run from vg_gui when active
 555  */
 556 void menu_render(void)
 557 {
 558    glEnable(GL_BLEND);
 559    glDisable(GL_DEPTH_TEST);
 560    glBlendFunc( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA );
 561    glBlendEquation(GL_FUNC_ADD);
 562
 563    shader_blitcolour_use();
 564    v4f colour;
 565    ui_hex_to_norm( ui_colour( k_ui_bg+3 ), colour );
 566    colour[3] = 0.5f;
 567
 568    shader_blitcolour_uColour( colour );
 569    render_fsquad();
 570
 571    if( (workshop_form.page != k_workshop_form_hidden) ||
 572        (vg_ui.focused_control_type != k_ui_control_none) ){
 573       return;
 574    }
 575
 576    if( vg.settings_open )
 577       return;
 578
 579    if( menu.credits_open ){
 580       ui_rect panel = { 0,0, 460, 400 },
 581               screen = { 0,0, vg.window_x,vg.window_y };
 582       ui_rect_center( screen, panel );
 583       ui_fill( panel, ui_colour(k_ui_bg) );
 584       ui_outline( panel, 1, ui_colour(k_ui_fg), 0 );
 585       ui_rect_pad( panel, (ui_px[]){8,8} );
 586
 587       ui_rect title;
 588       ui_split( panel, k_ui_axis_h, 28*2, 0, title, panel );
 589       ui_text( title, "Skate Rift - Credits", 2, k_ui_align_middle_center, 0 );
 590       ui_split( panel, k_ui_axis_h, 28, 0, title, panel );
 591       ui_text( title, "Mt.Zero Software", 1, k_ui_align_middle_center, 0 );
 592
 593       ui_split( panel, k_ui_axis_h, 8, 0, title, panel );
 594       ui_split( panel, k_ui_axis_h, 28*2, 0, title, panel );
 595       ui_text( title, "Free Software", 2, k_ui_align_middle_center, 0 );
 596
 597       ui_split( panel, k_ui_axis_h, 8, 0, title, panel );
 598       ui_text( panel,
 599             "Sam Lantinga       - SDL2 - libsdl.org\n"
 600             "Hunter WB          - Anyascii\n"
 601             "David Herberth     - GLAD\n"
 602             "Dominic Szablewski - QOI - qoiformat.org\n"
 603             "Sean Barrett       - stb_image,stb_vorbis,stb_include\n"
 604             "Khronos Group      - OpenGL\n"
 605             , 1, k_ui_align_left, 0 );
 606       return;
 607    }
 608
 609    glEnable( GL_DEPTH_TEST );
 610    glDisable( GL_BLEND );
 611
 612    f32 rate = vg.time_frame_delta * 12.0f;
 613
 614    if( menu.cam ){
 615       vg_camera target;
 616
 617       target.fov = menu.cam->fov;
 618       v3_copy( menu.cam->transform.co, target.pos );
 619
 620       v3f v0;
 621       mdl_transform_vector( &menu.cam->transform, (v3f){0.0f,-1.0f,0.0f}, v0 );
 622       v3_angles( v0, target.angles );
 623
 624       vg_camera_lerp( &menu.view, &target, rate, &menu.view );
 625
 626       menu.view.farz = 150.0f;
 627       menu.view.nearz = 0.01f;
 628
 629       vg_camera_update_transform( &menu.view );
 630       vg_camera_update_view( &menu.view );
 631       vg_camera_update_projection( &menu.view );
 632       vg_camera_finalize( &menu.view );
 633    }
 634    else return;
 635
 636    shader_model_menu_use();
 637    shader_model_menu_uTexMain( 1 );
 638    shader_model_menu_uPv( menu.view.mtx.pv );
 639    shader_model_menu_uPvmPrev( menu.view.mtx_prev.pv );
 640
 641    mesh_bind( &menu.mesh );
 642
 643    v4f white, blue;
 644
 645    ui_hex_to_norm( ui_colour( k_ui_fg ), white );
 646    ui_hex_to_norm( ui_colour( k_ui_orange+k_ui_brighter ), blue );
 647
 648    ent_menuitem *text_list[ 8 ];
 649    u32 text_count = 0;
 650
 651    u32 current_mat = 0xffffffff;
 652
 653    for( u32 i=0; i<mdl_arrcount(&menu.items); i++ ){
 654       ent_menuitem *item = mdl_arritm( &menu.items, i );
 655
 656       if(   item->type == k_ent_menuitem_type_disabled ) continue;
 657       if(   item->type == k_ent_menuitem_type_page ) continue;
 658       if( !(item->groups & (0x1 << menu.page)) ) continue;
 659
 660       if(   item->type == k_ent_menuitem_type_binding ){
 661          if( text_count < vg_list_size(text_list) )
 662             text_list[ text_count ++ ] = item;
 663          else
 664             vg_fatal_error( "Text list overflow" );
 665
 666          continue;
 667       }
 668
 669       int selected = 0;
 670
 671       if( menu.loc ){
 672          if( menu.loc->type == k_ent_menuitem_type_slider ){
 673             u32 subid = menu.loc->slider.id_handle;
 674             if( item == mdl_arritm( &menu.items, mdl_entity_id_id(subid) ))
 675                selected = 1;
 676          }
 677          else{
 678             if( item == menu.loc )
 679                selected = 1;
 680          }
 681       }
 682
 683       if( item->type == k_ent_menuitem_type_visual_nocol ){
 684          shader_model_menu_uColour( (v4f){1.0f,1.0f,1.0f,1.0f} );
 685       }
 686       else{
 687          v4f colour;
 688          item->factive = vg_lerpf( item->factive, selected, rate );
 689          v4_lerp( white, blue, item->factive, colour );
 690          shader_model_menu_uColour( colour );
 691       }
 692
 693       f32 scale = 1.0f+item->factive*0.1f;
 694
 695       m4x3f mmdl;
 696       mdl_transform transform = item->transform;
 697       v3_muls( transform.s, scale, transform.s );
 698       mdl_transform_m4x3( &transform, mmdl );
 699
 700       if( item->type == k_ent_menuitem_type_toggle && item->pi32 ){
 701          u32 subid = mdl_entity_id_id( item->checkmark.id_check );
 702          ent_menuitem *subitem = mdl_arritm( &menu.items, subid );
 703
 704          v3_muladds( item->transform.co, item->checkmark.offset, scale,
 705                      subitem->transform.co );
 706
 707          subitem->fvisible = vg_lerpf( subitem->fvisible, *item->pi32, rate );
 708          v3_fill( subitem->transform.s, subitem->fvisible );
 709       }
 710       else if( item->type == k_ent_menuitem_type_slider && item->pf32 ){
 711          u32 il = mdl_entity_id_id( item->slider.id_min ),
 712              ir = mdl_entity_id_id( item->slider.id_max ),
 713              ih = mdl_entity_id_id( item->slider.id_handle );
 714          ent_marker *ml = mdl_arritm( &menu.markers, il ),
 715                     *mr = mdl_arritm( &menu.markers, ir );
 716          ent_menuitem *handle = mdl_arritm( &menu.items, ih );
 717
 718          v3_lerp( ml->transform.co, mr->transform.co, *item->pf32,
 719                   handle->transform.co );
 720       }
 721
 722       shader_model_menu_uMdl( mmdl );
 723
 724       for( u32 j=0; j<item->submesh_count; j++ )
 725       {
 726          u32 index = item->submesh_start + j;
 727          mdl_submesh *sm = mdl_arritm( &menu.model.submeshs, index );
 728
 729          if( sm->material_id != current_mat )
 730          {
 731             mdl_material *mat = mdl_arritm( &menu.model.materials,
 732                                             sm->material_id-1 );
 733             glActiveTexture( GL_TEXTURE1 );
 734
 735             if( mat->shader == k_shader_standard )
 736             {
 737                struct shader_props_standard *props = mat->props.compiled;
 738
 739                /* FIXME: why does menu have its own texture array?? */
 740                glBindTexture( GL_TEXTURE_2D,
 741                               menu.textures[ props->tex_diffuse ] );
 742             }
 743             else
 744             {
 745                glBindTexture( GL_TEXTURE_2D, vg.tex_missing );
 746             }
 747
 748             current_mat = sm->material_id;
 749          }
 750
 751          mdl_draw_submesh( sm );
 752       }
 753    }
 754
 755    if( !text_count ) return;
 756
 757    char buf[ 128 ];
 758
 759    m4x3f local;
 760    m4x3_identity( local );
 761
 762    font3d_bind( &gui.font, k_font_shader_default, 0, NULL, &menu.view );
 763    for( u32 i=0; i<text_count; i++ ){
 764       ent_menuitem *item = text_list[ i ];
 765       m4x3f transform;
 766       mdl_transform_m4x3( &item->transform, transform );
 767
 768       u32 variant = item->binding.font_variant;
 769       menu_binding_string( buf, item->binding.pstr_bind );
 770       f32 offset = font3d_string_width( variant, buf );
 771
 772       local[3][0] = -0.5f * offset;
 773       m4x3_mul( transform, local, transform );
 774
 775       font3d_simple_draw( variant, buf, &menu.view, transform );
 776    }
 777 }
 778
 779 static void menu_binding_string( char buf[128], u32 pstr ){
 780    vg_str str;
 781    vg_strnull( &str, buf, 128 );
 782
 783    if( MDL_CONST_PSTREQ( &menu.model, pstr, "bind_jump" ) ){
 784       vg_input_string( &str, input_button_list[k_srbind_jump], 1 );
 785    }
 786    else if( MDL_CONST_PSTREQ( &menu.model, pstr, "bind_trick0" ) ){
 787       vg_strcat( &str, "SHUVIT " );
 788       vg_input_string( &str, input_button_list[k_srbind_trick0], 1 );
 789    }
 790    else if( MDL_CONST_PSTREQ( &menu.model, pstr, "bind_trick1" ) ){
 791       vg_strcat( &str, "KICKFLIP " );
 792       vg_input_string( &str, input_button_list[k_srbind_trick1], 1 );
 793    }
 794    else if( MDL_CONST_PSTREQ( &menu.model, pstr, "bind_trick2" ) ){
 795       vg_strcat( &str, "TREFLIP " );
 796       vg_input_string( &str, input_button_list[k_srbind_trick2], 1 );
 797    }
 798    else if( MDL_CONST_PSTREQ( &menu.model, pstr, "bind_grab" ) ){
 799       vg_input_string( &str, input_axis_list[k_sraxis_grab], 1 );
 800    }
 801    else if( MDL_CONST_PSTREQ( &menu.model, pstr, "bind_grab_mod" ) ){
 802       vg_input_string( &str, input_joy_list[k_srjoystick_grab], 1 );
 803    }
 804    else
 805       vg_strcat( &str, "error" );
 806 }